116172289 has 8 divisors (see below), whose sum is σ = 126504000. Its totient is φ = 106262352.

The previous prime is 116172257. The next prime is 116172299. The reversal of 116172289 is 982271611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116172289 - 2⁵ = 116172257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116172209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104869 + ... + 105970.

It is an arithmetic number, because the mean of its divisors is an integer number (15813000).

Almost surely, 2^116172289 is an apocalyptic number.

116172289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

116172289 is a deficient number, since it is larger than the sum of its proper divisors (10331711).

116172289 is a wasteful number, since it uses less digits than its factorization.

116172289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210887.

The product of its digits is 12096, while the sum is 37.

The square root of 116172289 is about 10778.3249626275. The cubic root of 116172289 is about 487.9412287572.

The spelling of 116172289 in words is "one hundred sixteen million, one hundred seventy-two thousand, two hundred eighty-nine".